- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 52°53'34"N 3°11'52"W
- Eastings/Northings: 319500, 333500
- OS Grid: SJ195335
- Mapcode Local: GBR 6X.PX94
- Mapcode Global: WH78H.VKB2
Location and coordinates are for the approximate centre of Foel Wylfa within this administrative area.
Geographic features and populated places may cross administrative borders.